trackoffical_app/app_business/lib/view/home/event_manage/dialog_settings.dart

import 'dart:collection';

import 'package:app_business/service/api.dart';
import 'package:track_common/widget.dart';

class Rule {
  var id = 0;
  var name = '';
  RuleValue value = RuleValueBool();
}

class RuleValue {}

class RuleValueBool extends RuleValue {
  var value = false;
}

class RuleValueArrStr extends RuleValue {
  var value = '';
  var options = <String>[];
}

class SettingsController extends GetxController {
  final rules = HashMap<int, Rule>().obs;

  @override
  void onInit() {
    final id = Get.arguments as int;
    Get.find<ApiService>()
        .stub
        .toActivityRulesQuery(IdRequest()..id = Int64(id))
        .then((p0) {
      rules.update((val) {
        for (final e in p0.list) {
          val![e.arrId] = Rule()
            ..id = e.arrId
            ..name = e.arName
            ..value = e.arType == 1
                ? (RuleValueBool()..value = e.isLock)
                : (RuleValueArrStr()
                  ..value = e.arValue
                  ..options =
                      e.arValueSelectList.map((e) => e.arValueSelect).toList());
        }
      });
    });

    super.onInit();
  }
}

class DialogSettings extends GetView<SettingsController> {
  const DialogSettings({super.key});

  @override
  Widget build(BuildContext context) {
    return GetBuilder(
        init: SettingsController(),
        builder: (ctx) {
          return AlertDialog(
            surfaceTintColor: Colors.white,
            title: const Center(child: Text('规则设置')),
            content: Column(
              mainAxisSize: MainAxisSize.min,
              children: [
                Obx(() => _list()),
                Padding(
                    padding: const EdgeInsets.symmetric(horizontal: 45),
                    child: AppButton.confirm(
                        width: double.infinity,
                        height: 38,
                        child: const Text('确认'),
                        onPressed: () {}))
              ],
            ),
          );
        });
  }

  Widget _list() {
    return Column(
      mainAxisSize: MainAxisSize.min,
      crossAxisAlignment: CrossAxisAlignment.start,
      children:
          controller.rules.value.values.map((data) => _RuleElem(data)).toList(),
    );
  }
}

class _RuleElem extends GetView<SettingsController> {
  const _RuleElem(this.data);

  final Rule data;
  @override
  Widget build(BuildContext context) {
    final value = data.value;
    Widget? option;

    if (value is RuleValueBool) {
      option = Switch(
          value: value.value,
          activeColor: Colors.blue,
          onChanged: (b) {
            value.value = b;
            controller.rules.update((val) {
              val![data.id] = data;
            });
          });
    }

    if (value is RuleValueArrStr) {
      option = Row(
        mainAxisSize: MainAxisSize.min,
        children: value.options
            .map((e) => _Radio(
                value: e,
                groupValue: value.value,
                onChanged: (v) {
                  if (v != null) {
                    value.value = v;
                    controller.rules.update((val) {
                      val![data.id] = data;
                    });
                  }
                }))
            .toList(),
      );
    }

    return Row(
      mainAxisSize: MainAxisSize.min,
      children: [
        SizedBox(width: 84, child: Text(data.name, textAlign: TextAlign.end)),
        const SizedBox(width: 22),
        option!,
      ],
    );
  }
}

class _Radio extends StatelessWidget {
  const _Radio(
      {required this.value, required this.groupValue, required this.onChanged});
  final String value;
  final String groupValue;
  final void Function(String?) onChanged;

  @override
  Widget build(BuildContext context) {
    return Row(
      mainAxisSize: MainAxisSize.min,
      children: [
        Radio(
            activeColor: Colors.blue,
            value: value,
            groupValue: groupValue,
            onChanged: onChanged),
        Text(value),
      ],
    );
  }
}